Last month, the media was sent into a spin when controversial senator Pauline Hanson announced one of "Donald Trump's economists" would soon come to Australia to help her with economic matters.
BuzzFeed News can reveal the "world-leading economist" tasked with advising the crucial One Nation voting bloc in the divided Senate is dual US-Australian citizen Darren Nelson.
In online biographies, Nelson repeatedly calls himself someone who adheres to the "Austrian school" of economics and a "neoAustrian" economist.
Holden, who received his economics PhD from Harvard, also questioned Nelson's economic credentials for someone advising a political party.
Over the phone, a spokesperson for One Nation senator Malcolm Roberts said Nelson is now helping the team with "how climate policy affects the economy, industrial relations, and efficiency".